#include<stdio.h>
#include<stdlib.h>
#include<windows.h>

int main(int argc,char*argy[]){
   float x,y,a;
   for(y=1.5;y>-1.5;y-=0.1)
    {for(x=-1.5;x<1.5;x+=0.05){
    a=x*x+y*y-1;
    putchar(a*a*a-x*x*y*y*y<=0.0?'@':' ');
    }
system("color 0c");
putchar('\n');
    }
printf("记得天天开心哦!\n");
return 0;
}